Re-press brick-machine



(No Model.) 5 Shets sheef 1 D. J. O. ARNOLD.

BIZ-PRESS BRICK MACHINE. I No. 500,315. Patented June 27, 1893.

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D. J. G. ARNOLD. R's-PRESS BRICK MACHINE.

No. 500,315. PatentedJune 27, 1893.

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D. J. 0. ARNOLD. RE-PRESS BRICK MACHINE.

No. 500,315. Patented June 27, 1893.-

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D. J. O. ARNOLD.

- RB-PRESS BRICK MACHINE. No. 500,315. Patented June 27, 1893.

UNITED STATES I PATENT OFFICE.

DANIEL J. O. ARNOLD, OF NEW LONDON, OHIO.

RE-PRESS BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 500,315, dated June 27,1893.

Application filed October 22, 1892. Serial No. 44.9,544. (No model.)

To aZZ whom it may concern.-

Be it known that I, DANIEL J. O. ARNOLD, a citizen of the United States,and a resident of New London, county of Huron, State of Ohio, haveinvented certain new and useful Improvements in Re-Pressers, of whichlhereby declare the following to be a full, clear, and exact description,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to improvements in repressing machinery for brick,and its obj cots are to provide a simple and eflicient form of presshaving quick and powerful movements, and it consistsin the combinationand arrangement of parts and construction of details as hereinafterdescribed, shown in the accompanying drawings, and more specificallypointed out in the claims.

In the accompanying drawings, Figure 1 is a plan of my improved machine.Fig. 2 is a side elevation. Fig. 3 is an end elevation showing actuatingparts. Fig. 4 is a vertical longitudinal central section on axis of mainshaft. Fig. 5 is a transverse vertical central section through pressshowing working parts as in Fig. 4 (intervening gears being brokenaway). Fig. 6 is a similar section showing working parts of press in thepositions shown in Fig. 2. Fig. 7 is a perspective View of the entiremachine; and Fig. 8 is a section of table showing rollers in position.

In the drawings A is the bed plate upon which all the machinery rests,of which E is the main actuating shaft and O auxiliary shaft.

D is an annular table supported upon rollers E which pivot in bearings Fin pedestals F resting upon the bed plate. To secure uniform rotarymovement additional rollers G are secured in such a manner as to bearupon the vertical flange D. These rollers are also for conveniencemounted upon the pedestals F in bearings G and prevent any horizontalslip of the table. Upon the upper face of the table slightly raisedforms or blanks H are placed at regular distances, as in groups of two,six times repeated, upon which the bricks to be repressed are placed asat H. The upper surfaces of the forms H are slightly raised in thecenter it to prevent the bricks from bulging.

plate.

Rotary movement is given the table by means of the miter gears I and Kupon shafts B and L, and by roller M mounted upon the gear K, and ateach revolution of the gear K coming into contact with one set of theprojeeting parallel guides N secured to the inner and lower edge of thetable. The movement thus given the table should be of the degree bywhich the mold blanks and bricks thereon are separated, as sixty degreesso as to bring each group of blanks in turn exactly underneath thepress, which is located over one side of the table and whose compositeportions are controlled by eccentric movements connected with the mainshaft, and guided by supports resting upon the bed The movements of thepress are coincident with the revolution of the table and for the sakeof clearness in the drawings all the main figures show the mechanism atthe end of the first quarter of its movements.

The construction and mode of operation of the press and adjacent partsis as follows:

0 is the repressing plunger, having a limited movement, and adjustablysupported in the cross head 0 moving in vertical guides P, and actuatedby eccentric Q on the main shaft Q are the connecting rods and brasses.

R is the mold box which envelops the brick on four sides while underpressure and its movement is necessarily greater than that of theplunger 0, the movements being in the drawings in the proportion of fourto one. The proportion however is not a fixed quantity. The mold box ismounted on cross head arms R reciprocated in the guides P by means ofyoke R and cam R upon the main shaft.

R are the rods of the yoke R moving in the guides 00 upon the bed plate.

It will be seen from Figs. 3 and 5 that the cams Q and R are situatedupon the same side of the shaft, but from the greater movement of thecamR the mold box R is brought down around the bricks upon the table beforethe plunger has descended, and removed before the plunger has risen itsfull height, thus pushing the bricks neatly from the mold box as itrises.

It will further be seen by reference to Figs. 3 and 5, that the cam Qwill act for aneighth of a movement before the cam R the advan-' tage ofwhich is very great on the return movement in relieving the pressureupon the brick when the cams are just rising and before the mold box hashad time to rise, since otherwise the soft brick would be forced underthe sides of the mold box. The surface '1- of the cam B being equal to asegment of one quarter of its revolution, the cam will revolve onequarter of a revolution at either end of its stroke without moving theyoke.

S isa permanent anvil located immediately underneath the plunger andtable, and designed to receive the blow from the plunger withoutspringing the table.

T is a pin secured to the cross head arm R, and adapted to register withone of the openings t in the table and form a lock to secure rigidity ofparts when the plunger and mold box are down on the table. The movementof the gear K and rollerM serves to bring the openings t in position atthe same that it brings up to the plunger dies the blank forms H withbrick H, and this should occur once in every revolution of the shaft.

In the sectional views of the plunger head means are shown foradjustment for the thickness of the bricks, which with the adjacentparts are as follows: Ois the plunger divided at 0 into two portions toact upon the two bricks. Through the opening 0 passes the partition 7*of the mold box which is closely bolted together, and to the cross headarms R. raise or lower the plunger 0 by its screw threaded extremity,and it is turned by means of a hand wheel or collar 0 provided withopenings 0 for a spanner or bar. Plates 0 serve as die blocks for theplunger.

0 are set screws fastening the collar 0 to the nut 0 The actuating gearis shown in Figs. 1 and 2, where l and 2 3 and 4 are spur gears derivingpower from the pulley or clutch V and reduce the speed as desired.

It will be seen that the power is derived from a large fly band wheel Uwhich will equalize any irregularity of movement incident to varyinghardness of brick or other causes, and by means of a clutch as V thewheel can instantly be cut off to stop all movement of the press in caseof any accident or I undesirable occurrence in the movements of themechanism.

Any suitable form of wheel and clutch may be employed.

As shown Fig. 4 W is a loose sleeve upon the shaft, bearing thepinion 1. V is the clutch of usual form sliding upon the spline 11 and Uis the fly band wheel.

In Fig. 8 is distinctly shown the manner in which the table is supportedupon and guided by the rollers E and G.

It will be seen that theform of device shown is exceedingly welldesigned to accomplish the desired objects and additional advantage isgained in the alternating movements of the mold box and plunger sincethe friction of the bricks on the mold box when rising will cause themto be lifted far enough from their beds on the table, to loosen themthoroughly so that they will not stick on being removed.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

1. In a repress, the combination with a horizontal rotary annular table,of vertically reciprocating plunger and mold box over said table, a mainactuating shaft B supported upon a suitable bed plateunderneath thetable, and mechanism for revolving the table 1 conjointly with thevertical movements of the dies and mold box, consistingin the gears Iand K on shaft B, wheel M and parallel guides N on the table, witheccentrics R and 1 Q on the shaft, provided with cross heads 0' 1 and R,substantially as set forth.

A nut O in the cross head 0' serves to j zontal table with verticallyreciprocating plu n- 2. In a repress, the combination of a horiger andmold box, and means for reciprocating the same consisting in cross headsR and O, yoke R and cam R provided with segment 0", cam Q and rod Q andmain and auxiliary shafts, B and C with operating gears, 1-2-34, I and Kprovided with roller M adapted to engage guides N, substantially as setforth.

3. In a repress the combination with vertically reciprocating plungerand-mold box, and vertical guides therefor, of an annular table adaptedto rotate between said guides supported upon vertical rollers and guidedby horizontal rollers, and an anvil underneath said table and verticallyreciprocating dies and mold box, substantially as described.

DANIEL J. C. ARNOLD.

Witnesses:

WM. M. MONROE, RoLLIN C. POWERS.

